(kai-low-don-ella) is a hypostome ciliate with a mouth stiffened by a palisade of microtubular rods protruding from the ventral surface of the cell. The mouth is used to pick up bacteria and small pieces of detritus and manipulate them into the body. In focus on the surface of the cell to show cilia and the opening of the ingestion apparatus. Common in freshwater and marine habitats. Differential Interference contrast.